Pat.#4695752:		Narrow range gate baseband receiver
INVENTORS:		Ross; Gerald F., Lexington, MA
		Robbins; Kenneth W., Wilmington, MA
ASSIGNEES:		Sperry Corporation, New York, NY
ISSUED:		Sep. 22, 1987
FILED:		Jan. 11, 1982
ABSTRACT: A baseband receiver with a range gate interval in the order of nanoseconds. A tunnel diode, set to the low level state, is coupled across the output terminals of a bridge that is balanced in the absence of a received signal, during the range gate interval. Signals received by an antenna are coupled to a tunnel diode in an arm of the bridge causing it to change from its low level state to its high level state thereby unbalancing the bridge and establishing a voltage at the output terminals of the bridge that fires the tunnel diode coupled there across.